[SRU] [J/OEM-5.14] [PATCH 0/2] Fix AMDGPU blank screen when Type-C DP alt is in use

[Kai-Heng Feng]

BugLink: https://bugs.launchpad.net/bugs/1980060

[Impact]
When Type-C DP/HDMI is in use, s0ix resume renders both eDP and DP
outputs blank.

[Fix]
Query the firmware to ensure the DP alt status.

[Test]
Suspend and resume the system, both eDP and Type-C DP/HDMI are working.

[Where problems could occur]
This fix only applies to certain AMD GFX with certain firmware version,
so the scope is very limited.

Nicholas Kazlauskas (2):
  drm/amd/display: Query DMCUB for dp alt status
  drm/amd/display: Add version check before using DP alt query interface

 .../display/dc/dcn31/dcn31_dio_link_encoder.c | 161 ++++++++++++++----
 .../gpu/drm/amd/display/dmub/inc/dmub_cmd.h   |  29 ++++
 2 files changed, 157 insertions(+), 33 deletions(-)

-- 
2.36.1